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ASF GitHub Bot commented on KYLIN-3697:
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asfgit commented on issue #353: KYLIN-3697 Check port availability when starts kylin instance
URL: https://github.com/apache/kylin/pull/353#issuecomment-440273296
Can one of the admins verify this patch?
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> check port availability when starts kylin instance
> --------------------------------------------------
>
> Key: KYLIN-3697
> URL: https://issues.apache.org/jira/browse/KYLIN-3697
> Project: Kylin
> Issue Type: Bug
> Affects Versions: v2.5.1
> Reporter: May Zhou
> Priority: Minor
>
> As I ran the script and it turned out with no error message, and I ran the kylin.sh start
script, the console output indicated that a kylin instance had successfully started, but when
I visit the <host>:<port>/kylin, I found another service was running rather than
kylin.
>
> I can only find the error message in the kylin.out, which is not so user-friendly.
> > Caused by: java.net.BindException: Address already in use (Bind failed)
> at java.net.PlainSocketImpl.socketBind(Native Method)
> at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
> at java.net.ServerSocket.bind(ServerSocket.java:375)
> I am wondering why check-env does not check the availability of port, and the error message
could be threw out more user-friendly.
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